Sourcing

A pre-purchase authentication method for resellers: documentation habits, category checks, platform verification services compared, and risk rules.

Red flags for counterfeit and replica listings on Vinted, OLX and eBay: photos, pricing, seller patterns, and when verification or eBay's guarantee helps.

A six-check routine and printable checklist for judging an item before you buy: resale price, demand, fees, condition, authenticity risk and your max price.

Are liquidation pallets worth it? Manifested vs unmanifested lots, expected value after unsellable items, testing, disposal, storage and seller red flags.

Turn gut feel into buying rules: max price, minimum profit, categories, condition and price confidence. Examples for fashion, sneakers and electronics.

How to negotiate when buying used items to resell: open from your max-buy price, polite PL and EN message scripts, bundle offers, and when not to haggle.

A 10-minute test protocol for used phones, laptops, consoles and headphones before you pay, what counts as not as described and when verification helps.

Buy on Facebook Marketplace, resell on Vinted, OLX or Allegro Lokalnie: pickup inspection, common scams, what the fees really are and the price-gap maths.

Is it illegal to sell fake designer items? What Polish trademark law says, the criminal risk, Vinted's counterfeit rules and the 48-hour evidence window.

How to avoid buying stolen goods: red flags in listings and meetings, serial and IMEI checks, proof of ownership and what Polish law says on paserstwo.

Flea market flipping without guesswork: when to arrive, cash and haggling etiquette, a 60-second phone lookup at the stall and a max-buy rule you set at home.

How to buy stock on Allegro Lokalnie to resell: auctions vs Kup teraz, local pickup deals, Smart! delivery, buyer protection limits and a max-bid rule.

Buying broken items to fix and resell: which faults are worth it, how to price the repair before you buy, and how to describe repairs on Vinted and OLX.

Where to find vintage clothing to resell: lumpeks priced by weight, flea markets, house clearances and family wardrobes; what to skip and how to judge age.

Buying bulk lots to resell on OLX or Allegro Lokalnie: price a mixed lot by its best items, plan the break-up, exit the leftovers and count time per item.

Supplier-neutral bale maths for Vinted resellers: hit rate, sorting hours, unsold remainder and the break-even price per kilo, with a template you can reuse.

Price gaps between OLX, Allegro Lokalnie, Vinted and eBay: fees, shipping and time, plus what eBay's User Agreement and API licence each say on automation.

Charity shop reselling in the UK and Poland: the ethics debate, how to learn a shop's restock rhythm yourself, and checks to run before you pay at the till.

An English guide to sourcing in Polish lumpeks: delivery days, price-by-weight days, what to check on the rack and how to price finds for Vinted and OLX.

What to take from a house clearance to resell: how to price your offer for the lot, a one-hour room triage, and the transport and disposal costs to count.

Komornik auctions for resellers: how bailiff auctions of movables and e-licytacje work, the rękojmia deposit, inspection, payment and no warranty.

Best time of year to buy items to resell is when supply spikes: moving season, post-holiday clear-outs and end of school year, checked with your own counts.

Retail arbitrage in Europe: whether reselling shop clearance stock is allowed, when you become a business seller, which receipts to keep and your margin.